From patchwork Sun Sep 2 21:55:59 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 1397771 Return-Path: X-Original-To: patchwork-linux-acpi@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 3C9193FC71 for ; Sun, 2 Sep 2012 21:57:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756081Ab2IBV4T (ORCPT ); Sun, 2 Sep 2012 17:56:19 -0400 Received: from rcsinet15.oracle.com ([148.87.113.117]:40053 "EHLO rcsinet15.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755396Ab2IBV4R (ORCPT ); Sun, 2 Sep 2012 17:56:17 -0400 Received: from acsinet22.oracle.com (acsinet22.oracle.com [141.146.126.238]) by rcsinet15.oracle.com (Sentrion-MTA-4.2.2/Sentrion-MTA-4.2.2) with ESMTP id q82Lu8UI030257 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sun, 2 Sep 2012 21:56:09 GMT Received: from acsmt357.oracle.com (acsmt357.oracle.com [141.146.40.157]) by acsinet22.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id q82Lu8lr015269 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sun, 2 Sep 2012 21:56:08 GMT Received: from abhmt107.oracle.com (abhmt107.oracle.com [141.146.116.59]) by acsmt357.oracle.com (8.12.11.20060308/8.12.11) with ESMTP id q82Lu7BF030552; Sun, 2 Sep 2012 16:56:07 -0500 Received: from linux-siqj.site (/75.55.221.75) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 02 Sep 2012 14:56:07 -0700 From: Yinghai Lu To: Bjorn Helgaas , Taku Izumi , Jiang Liu , x86 Cc: Andrew Morton , Linus Torvalds , Greg Kroah-Hartman , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Yinghai Lu Subject: [PATCH part5 1/7] ACPI, PCI: Use normal list for struct acpi_pci_driver Date: Sun, 2 Sep 2012 14:55:59 -0700 Message-Id: <1346622965-30937-2-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.7 In-Reply-To: <1346622965-30937-1-git-send-email-yinghai@kernel.org> References: <1346622965-30937-1-git-send-email-yinghai@kernel.org> X-Source-IP: acsinet22.oracle.com [141.146.126.238] Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org From: Jiang Liu Use normal list for struct acpi_pci_driver to simplify code. Signed-off-by: Jiang Liu Signed-off-by: Yinghai Lu --- drivers/acpi/pci_root.c | 16 +++------------- include/linux/acpi.h | 2 +- 2 files changed, 4 insertions(+), 14 deletions(-) diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 12791fd..2aec08d 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -72,8 +72,8 @@ static struct acpi_driver acpi_pci_root_driver = { }; static LIST_HEAD(acpi_pci_roots); +static LIST_HEAD(acpi_pci_drivers); -static struct acpi_pci_driver *sub_driver; static DEFINE_MUTEX(osc_lock); int acpi_pci_register_driver(struct acpi_pci_driver *driver) @@ -81,10 +81,7 @@ int acpi_pci_register_driver(struct acpi_pci_driver *driver) int n = 0; struct acpi_pci_root *root; - struct acpi_pci_driver **pptr = &sub_driver; - while (*pptr) - pptr = &(*pptr)->next; - *pptr = driver; + list_add_tail(&driver->node, &acpi_pci_drivers); if (!driver->add) return 0; @@ -103,14 +100,7 @@ void acpi_pci_unregister_driver(struct acpi_pci_driver *driver) { struct acpi_pci_root *root; - struct acpi_pci_driver **pptr = &sub_driver; - while (*pptr) { - if (*pptr == driver) - break; - pptr = &(*pptr)->next; - } - BUG_ON(!*pptr); - *pptr = (*pptr)->next; + list_del(&driver->node); if (!driver->remove) return; diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 3ad510b..a54cf8e 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -138,7 +138,7 @@ void acpi_penalize_isa_irq(int irq, int active); void acpi_pci_irq_disable (struct pci_dev *dev); struct acpi_pci_driver { - struct acpi_pci_driver *next; + struct list_head node; int (*add)(acpi_handle handle); void (*remove)(acpi_handle handle); };